| Guadarrama to Bitonto | 1,082.76 mi (1,742.54 km) |
| Guadarrama to Bitritto | 1,090.97 mi (1,755.75 km) |
| Guadarrama to Bollate | 745.21 mi (1,199.30 km) |
| Guadarrama to Bologna | 826.74 mi (1,330.51 km) |
| Guadarrama to Bolzano | 869.35 mi (1,399.08 km) |
| Guadarrama to Bomporto | 815.98 mi (1,313.19 km) |
| Guadarrama to Bonate di Sopra | 768.83 mi (1,237.31 km) |
| Guadarrama to Bondeno | 836.80 mi (1,346.70 km) |
| Guadarrama to Bordighera | 637.99 mi (1,026.75 km) |
| Guadarrama to Borgaro Torinese | 668.85 mi (1,076.41 km) |
| Guadarrama to Borgo a Buggiano | 788.28 mi (1,268.62 km) |
| Guadarrama to Borgo San Dalmazzo | 640.69 mi (1,031.09 km) |
| Guadarrama to Borgo San Lorenzo | 820.92 mi (1,321.14 km) |
| Guadarrama to Borgomanero | 720.45 mi (1,159.46 km) |
| Guadarrama to Borgoricco | 874.52 mi (1,407.41 km) |
